20187897

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 27555840

約数和(自身を除く): 7367943

約数列:

[1, 3, 79, 103, 237, 309, 827, 2481, 8137, 24411, 65333, 85181, 195999, 255543, 6729299, 20187897]

約数ペア:

[(1, 20187897), (3, 6729299), (79, 255543), (103, 195999), (237, 85181), (309, 65333), (827, 24411), (2481, 8137)]